An automatic method for colon segmentation in CT colonography

被引：42

作者：

Bert, Alberto ^{[1
]}

Dmitriev, Ivan ^{[2
]}

Agliozzo, Silvano ^{[1
]}

Pietrosemoli, Natalia ^{[2
]}

Mandelkern, Mark ^{[3
]}

Gallo, Teresa ^{[4
]}

Regge, Daniele ^{[4
]}

机构：

[1] im3D SpA Med Imaging Lab, I-10153 Turin, Italy

[2] Inst Sci Interchange Fdn, I-10133 Turin, Italy

[3] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

[4] Inst Canc Res & Treatment, I-10060 Turin, Italy

来源：

COMPUTERIZED MEDICAL IMAGING AND GRAPHICS | 2009年 / 33卷 / 04期

关键词：

CT colonography; Colon cancer; Segmentation; CAD; COMPUTERIZED DETECTION; COLONOSCOPY; CENTERLINE; POLYPS; WALLS;

D O I：

10.1016/j.compmedimag.2009.02.004

中图分类号：

R318 [生物医学工程];

学科分类号：

100103 [病原生物学];

摘要：

An automatic method for the segmentation of the colonic wall is proposed for abdominal Computed tomography (CT) of the cleansed and air-inflated colon. This multistage approach uses an adaptive 3D region-growing algorithm, with a self-adjusting growing condition depending on local variations of the intensity at the air-tissue boundary. The method was evaluated using retrospectively collected CT scans based oil visual segmentation of the colon by expert radiologists. This evaluation showed that the procedure identifies 97% of the colon segments, representing 99.8% of the colon Surface, and accurately replicates the anatomical profile of the colonic wall. The parameter settings and performance of the method are relatively independent of the scanner and acquisition conditions. The method is intended for application to the computer-aided detection of polyps in CT colonography. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：325 / 331

页数：7

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